Singing sand and making rice
It is a metaphor that the false is confused with the true or the bad is the best.
Idiom explanation
It is a metaphor to take the false as the true or the inferior as the superior.
Idioms and allusions
[source] in Qing Dynasty, Li Yu's "leisurely love occasionally sent · CI Qu · bin Bai": "to the so-called many, that can not be deleted as much, not as many as singing sand and making rice, strong Fu changing crane."
Discrimination of words
Usage: used as object and attribute; used in handling affairs
Singing sand and making rice
lively and vigorous flourishes in calligraphy - lóng fēi fèng wǔ
refuse to mend one 's ways despite repeated admonition - lěi jiào bù gǎi